But for me the choice would be either go with the b75 pro3 (matx or not is your choice) and the i5 of your choice. That would be the budget option, and offers everything cept overclocking. Which a non K processor isnt very useful for anyways.

But if you fancy overclocking somewhat down the line and be more future proof, dont skimp and go with the k processor an I5 3570k which is 30$ more and this mobo:

thats the most budget proper overclocking motherboard from asrock, though reading up on the extreme 3 that might also be fine, the 4 is slightly more expensive offers slightly better power phasing for overclocking and I think slightly better caps.

Maybe someone else knows more about difference between caps and which is better value for money

With the extreme mobos you cant go with the matx ones as they offer less power phases